simple_abc9 tests to discard whitebox before write for sim

tests/simple_abc9/abc9.v

@@ -213,7 +213,7 @@ module arbiter (clk, rst, request, acknowledge, grant, grant_valid, grant_encode
   input rst;
 endmodule
 
-(* abc9_box_id=1 *)
+(* abc9_box_id=1, whitebox *)
 module MUXF8(input I0, I1, S, output O);
 endmodule
 

tests/simple_abc9/run-test.sh

@@ -28,4 +28,5 @@ exec ${MAKE:-make} -f ../tools/autotest.mk $seed *.v *.sv EXTRA_FLAGS="-n 300 -p
     abc9 -lut 4 -box ../abc.box; \
     clean; \
     check -assert; \
-    select -assert-none t:${DOLLAR}_NOT_ t:${DOLLAR}_AND_ %%'"
+    select -assert-none t:${DOLLAR}_NOT_ t:${DOLLAR}_AND_ %%; \
+    setattr -mod -unset whitebox'"